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Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) Sample Questions:

1. Which type of regression is most appropriate when the response variable is categorical, such as predicting customer churn (Yes/No)?

A) Linear regression
B) Logistic regression
C) Decision tree regression
D) Polynomial regression

2. When merging two Pandas DataFrames using a common key, which parameters are essential to ensure accurate and conflict-free results?
(Choose two)

A) suffixes
B) on
C) dropna
D) ignore_index

3. What is the correct SQL statement to permanently remove a table named customers from a database?

A) DROP TABLE customers;
B) TRUNCATE TABLE customers;
C) REMOVE TABLE customers;
D) DELETE TABLE customers;

4. Which file formats are commonly used for hierarchical or nested data structures in data acquisition?
(Choose two)

A) JSON
B) TSV
C) CSV
D) XML

5. Which element is essential to justify a conclusion drawn from a dataset?

A) File format of the source data
B) The origin of the dataset
C) The use of color in plots
D) Logical reasoning and supported metrics

Solutions: